The photon angular momentum controversy: Resolution of a conflict between laser optics and particle physics

The claim some years ago, contrary to all textbooks, that the angular momentum of a photon (and gluon) can be split in a gauge-invariant way into an orbital and spin term, sparked a major controversy in the Particle Physics community, exacerbated by the realization that many different forms of the a...

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Bibliographic Details
Main Author: Elliot Leader
Format: Article
Language:English
Published: Elsevier 2016-05-01
Series:Physics Letters B
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269316001945